This shows that were a lot of unfilled sell orders in the market at that price range.
This is true because prices wouldn't have fallen so quickly if this wasn't the case.
Prices would continue to trade sideways.
But they didn't, suggesting a seller biased imbalance.
The downside to this zone is the amount of activity preceding the zone.
But the reward of such a zone which no obvious demand below is high.

EP: ~90.465
SL: ~90.820
TP: ~89.000 (depending on the formation of new larger time demand zones.